Locomotive cab



March 31, 1931.

2 Sheets-Sheet Filed July 31. 1930 Z W "a 7 a" a 7 zmww, f F & 0 a u u 2 1 J I a up .u m l RV I 4/ a v l/ I vfirfl? n 1 MM 2 L L y 6 H I a fllllllll. L

March 31, 1931. J. 5. KEEN 1,799,048

LOCOMOTIVE CAB Filed July 31, 1930 2 Sheets-Sheet 2 PatenteclMar. 31, 1931 i UNITED STATES PATENT oFFicE Application filed July-31, 1930. Serial No. 472,080.

One object of my invention is ;to make a roof, as it. will-be understood that the roof locomotive cab of sheet steel or iron, in whioh is preferably provided with a wood lining. the sheets are welded together and in which The body portion ofthe cabmay also be lined the number of angle shapes are materially with wood orother material if desired.

reduced.- 'l'1. are thesides ofthe cab. 2 is the front A further object of the invention is to endof the cab and 6iisathe rearend of the make each sideand portions of theiends of cab. Theplates'formingthe sides of the cab the cab froma singlesheet of metal, cutout to are bent at each end as shown in Fig. 11 and formjwindow and door openings andbent as form-the part 2a, of the front end of the cab described-hereafter. I and the part Get at the rear end of the cab.

A still further objectof the invention is The parts Qaat the forwardend oil-the cab to provide a comparatively smooth surface arebutt welded as indicated at e-e .to an on th xt rior of thecab'. overhead plate Qb at the forwardlend, .:form- In the. accompanying drawings: ingv the upper portionof the forward end of :Fig. 1 is a side view of acabillustrating the: cab. This platelis cut on acurved line my invention; as at3 to'fit the boiler of thelocomotives.

Fig. Qis a sectional view. on .the line 2-2, Each of the sections 2a1are cut out topro- Fig. '1, looking towards the front end ofthe vide doorways 4,1andthe'jambs 4a. ofthese cab; doorways are preferably 'madeof wood, as

9;] Fig. 3 is a rear end. view ofthe cab; shown intFig. '12, to which the doors are hung. 76 Fig; 4 is a sectional View showing. the joint In usual practice the doors .swing outwards between a roof plate and the forward. end so that the door, when closed, will rest plate asindicated at. a,-Fig. 1;; against the flanges 4J2 of.the wooden jambs. Fig. 5 illustrates theweldaimting two roof If the 'dooris hung to swinginwardly, then 2.). plates; the wooden jambsare made rectangular in Fig. 6 is a View showing the method of cross-section and areset back so that the edge welding the .ventilated structure to the roof of the metal plate will .projectbeyond the as indicated at b, Fig. 2; jambs. r

Fig. '7 shows a method of welding short "8 and 9 are window openings in the sides of 2 i angle beams to the roof as at c, Fig. 1; the cab. Theseopenings are provided with so Fig. 8 is a sectional view on the line 88, sash, one orboth of which may be of the Fig. 3, showing the weld uniting the two sliding type and slide upon the rails 19, the plates at the rear end of the cab; lower rail being supported by an. angle-bar Fig. 9 is a sectional View on the line 9-9, 13 whichacts also as a stiffening member for 3.; Fi 3; v the sides of the cab. 14"is a base angle beam Fig. 10 is a sectional View on the line 10-10, which extends on-each side and on each end Fig. 1, showing a method of welding the ofthe .cab and iswelded to the sidesan roof plates to the side plates; ends of the cab as shown.

Fig. 11 is a sectional View on the line 12 is an angle bar whlch formsthe plate 40 11-11, Fig. 3, and of the 'cab an'd the=jointbetweenrthe sides Fig. 12 is a section on the line 12-12, of the .cab and the roof plates 10i s in this Fig. 2, showing the wooden door frame seinstanceyback of the anglebarv as lndicated cured to the forward end plates. at w, Fig. 10. The two rear end members 6a The cab which I will now proceed to dewhich form an integral part of the'side memscribe is made of sheet metal plates bent into bers of the cab are connected by an overhead 5 shape and welded. Very few angle beams are plate '66; being welded as lndicated ;to the used and those which are used act as frame plate. at o.-v. beams for the sides and ends of the cab, The window Openings?in -the reargfthe and those at the roof provide means for fascab are formed by cutting away-th e d.

tening wooden roof members to the metal tions 6a and theupperconnectmg plate 6?) forms the top of the window frame in the present instance. The rear end is reinforced at the opening 20 by angle bars 18 which are welded to the plates 6a and 6b in the manner shown in Fig. 9. The plates 6a and 6?) extend beyond the angle bars so as to allow the bars to be welded to the plates at the two points indicated in Fig. 9.

In the structure shown no floor plate is used as the running-board of the locomotive extends under the cab and the flanges of the angle beams 14 are secured to the runningboard, but where a metal plate is used as the floor, then the plate is preferably welded to these angle beams 14.

The several beams are preferably welded to the plates at intervalsas shown in Figs. 1 and 3, as a continuous weld is not necessary. The joint between the roof plate 10 and the front end plate 2?) is indicated at w in Fig. l, and the roof plate is welded to the plate 6b at the rear end of the cab in like manner.

The roof is preferably made up of a number of plates. and these plates are butt welded as shown in Fig. 5.

The ventilator structure 16 is of any approved type and is attached to the roof plates 10 by a weld y as shown in Fig. 6. Extending transversely under the roof plates 10 and welded thereto are sectional angle beams 11a and 11b. The end beams 11?) are welded to the plate beams 12 as well as to the roof plates. These beams l111a11b form the means by which the wooden strips 21 are secured in position and to which the ceiling boards 22 are attached.

Where a ceiling lining is not desired, then the lining and the strips may be dispensed with. 23 are angle bars which are located one on each side of the roof and are set at any angle. These bars form gutters to direct rain water to the rear of the cab.

By the above construction, a cab made in accordance with my invention will have no angle bars or T-irons which project into the interior of the cab, with the exception of those necessary to form with plates the frame of the cab. This construction materially reduces the weight of the cab. and by making the sides and portions of the ends of the cab from a single plate, corner angles and other stiffening members are dispensed with.

I claim 1. A cab for a locomotive made of sheet metal, in which the sides and a portion of each end of the cab are made from single sheets of metal bent into shape.

2. A cab for a locomotive made of sheet metal and consisting of side members and front and rear end members and roof plates. portions of the front and rear plate ends of the cab being formed integral with the sides of the cab, and the overhead plates of the front and rear of the cab being butt welded to the portions of the front and rear end plates which are formed integral with the sides.

3. A cab for a locomotive made of sheet metal, the sides of the cab being made of single sheets, and the roof being made of a number of sheets secured together by butt welding.

4. A cab for a locomotive made of sheet metal having sheet metal sides and a roof structure, the edges of the roof structure being butt welded to the sides, and a longitudinal angle beam forming the plate of the cab, the weld being directly back of the angle beam.

5. The combination in a locomotive cab, of sheet metal sides and a sheet metal roof secured thereto; angle beams welded to the roof at intervals; and wooden strips secured to said beams and to which the lining of the cab is secured.

6. The combination in a cab for a locomotive having one-piece side members which are bent at each end to form portions of the front and rear ends of the cab, of roof plates; and a ventilator structure of metal extending through an opening in the roof and welded. to the roof plate.

7. A cab for a locomotive in which the sides and portions of each end are made of sheet metal bent into shape, each end section being cut away to form window and door openings; front and rear plates welded to the end members which form an integral part of the side plates of the cab; and a sheet metal roof structure welded to the upper end plates.

8. A cab for a locomotive made of sheet metal, and in which each sideand a portion of an end are made from a sheet of metal bent into shape.

JOHN S. KEEN. 

